Vehicle tire-protector.



H. CHARM. VEHICLE TIRE PROTECTOR. APPLIGATION FILED MAR.1a, 1912.

lPafntedl Jan. 5, 1915.

LJQSAE l I limi will HYMN CHARM, OF '.DORCHESTER, MASSACHUSETTS.

vaincra "rrnrreorscroa Speeication of Letters Patent.

Patented dan.- 5, Milla.

.Applicationled March 18, '119122. Serial ITo. 684,635.

To all whom t may concern.'

Be itknoWn that l, HYMAN CHARM, a citizen et' the United States of America,

yand a resident of Dorchester, in the county 'of Suffolk and State of lvlassachusetts, have invented certain new and useful improvements in Vehicle Tire-Protectors, oi which the following is a specification.

This invention relates to protector-s for vehicle tires, and has for its object the production of a protector which, while very resilient, will present a good gripping surface and protect a pneumatic tire from puncture.

llt has for a further object the production of a resilient protector which is provided with a plurality of anti-skiddingmembers.

lt consists primarily in a covering for the tire composed of a plurality of interlocked helical springs retained in position by means of a plurality of connectors interposed between the Youter springs and adjustable annular members by adjustment of Which the protector is drawn lirinly against the outer surface of the pneumatic tire.

The invention further consists in certain novelteatures of construction and arrangement est-parts which will be thoroughly understood by reference to the drawings and to the claim hereinafter given.

Of the drawings: Figure 1 represents a vertical section of a protector embodying the features oit' the present invention7 a small portion thereof being shown in elevation. Fig. 2 represents a transverse scction of a pneumatic tire showing in section the protector applied thereto, this figure being drawn to an enlarged scale. Fig. 3 rep resents a plan of a portion of the protector showing the means of interlocking the various helical springs together, and Figs. 4 and 5 represent diagranumitical views showing the ends of the protector withl the va-.

rious springs thereof in echelon and adapt-` ed to dovetail into each other to forni a Joint.

bumlar characters designate like parts throughout the several figures of the drawings.

ln the drawings, 10 represents a plurality of right hand helical springs and 11 represents a plurality 'of left hand helical.

springs, these sprmgs alternately interrneshing one another. Each pair of overlapping springs is locked together by means 4erably connected thereto by any. Well-lrno of a Wire 12 inserted through the overlap- .a

ping portions of said springs, thereby joining all of the springs together in. parallelism. ln each outer spring is inserted another Wire 13 to which is attached a plurality of connecting members 14, the opposite ends of'tvhich encircle an annular di-v vided member 15, the ends of which are threaded and have mounted thereon a turnbuckle 16. The diameter of the annular member 15 is considerably less than the diameter of the protector formed oi' the plurality of springs interlocking as described. lhere is an v'annular member on either side of the Wheel 17, andeach of these annular members 15 may hav'its diameter decreased by. the operation ot' the turnbuckle 16 in an obvious manner, thereby drawing the edges of the rotector over the pneumatic tire 18 and in rm contactthere with. lnterposedbetween the pneumatic tire 1S and the springs l0 and 11, and pret means, is a sheet 19 of leather or some o tough material, which performs the mice of protecting the outer surfacefoi: the rubber tire from the rubbing contact therewith orh the spring protector. Bearing upon the outer i'ace of the sheet 19 are the heads' of a plurality of anti-skidding members 20 the shanks of which extend through the coils of the springs 10 and 1l. As thewheel ro tates about` its axis a greater length of the Shanks of "these anti-skidding members is uncovered Dwing to the compression of the springs, and therebythey are permitted to secure a ir'm hold upon the surface oit' the ground over which theI vehicle is passing. These members e'li'ectually prevent skidding of the vehicle as sharp`corners are turned or when traveling rapidly on wet surfaces. As the wheel rotates about its axis the coils of the springs yield considerably and add greatly to the resiliency of the tire. When interlocked, as has been described, the springs form an etl'ectual armor for the tire whereby nails andA other sharp articles are ci'l'ectually prevented frorrnieontacting with the pneumatic tire and injuring the same'. Owing to the resiliency of the spring pro tector, should a nail be picked up While the spring is under compression, as it passes over the road, as soon as that portion of the 'tire in the rotation of the Wheel leaves the eeeh end of the protector are interlocled' with the projecting ends on theopposite endiof the protector by a plurality of short wires 21 extending between the ends of each of the springs es is indicated in Figs. 4

` and 5 0l' the drawings.

It is believed that the operation sind many advantages of the invention will be `thor oughly understood from the foregoing.

Having thus described my invention, I claim:

A removable protector for vehicle tires adapted to be temporarily positioned on the outer surface of e tire, consisting of n plu rality of interineshed right :1nd left hand helical springs extending,r eireumferentiully of seid tire, Wires inserted in the inter- Ineshes of said springs and extending throughout the length thereof with their ends at dili'erent points from the ends of seid springs, und un additional wire in erich spring with its ends inserted in opposite ends of the helical spring.

Siened by me et 4 Post Ollce Sq., Boston, tIii/lass., this 16th dey of March, 1912.

HYMAN CHARM.

Witnesses:

WALTER E. LOMBARD, NATHAN C. LOMBARD. v 

